From patchwork Tue Mar 11 11:48:44 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 14011612 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8C4B8224258 for ; Tue, 11 Mar 2025 11:49:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741693743; cv=none; b=vBHA+YmUJchrN91slxtBpbVEF5c3bJwjbg6yESwGKbrJpPyfNVUgIeigYNIa580JAk60FfeLXa0H6ZCY/k9+BP3yLZRgfAeZh16tjYmTCL+n3RwZ4AqORPjchiv4wJMDmfKBFHJy6x3XpU0/TVrkqaWmFOe19svkzx9csxtB3u0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741693743; c=relaxed/simple; bh=+vlO64ju7g/p+jl67/8W4wRBRR7WjAeT7Mpsl28ogfU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=XDc/Y1G8zJma/tq8fKGhRNHyyrzuO/I4y6IDEW80DeZFAwojHIoRAXSw/oKI3sp0aIVQbmVf1jtAP4XN4DnhpxkbY/NkSfFT9DvuGKjEMQuceyhoPBEhy+osWUal0tYlnNolir9CExWBjXRU1d2rMUKwnoMU+WbwWh2Hmly1jKA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=Mz12ml6T; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Mz12ml6T" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1741693740; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=+w6guCNStiWWD5AG2mGvq/2FQu/C03U9KRO9jThrbxU=; b=Mz12ml6TxPy4L1j82NP3h/7zUqzfI26DZm9o2RSH13jNnRLQ3zQSZY1qqCjFTyEf1gwxEO qA/x3kUwwUhQhBCxR+iBROu6im3rICw4ONXwsuRXs8gcILWixZJOPu+fjegp/CUVZGkOfj ywkBn0RBf3b9rO1+bMBZq2Sdg9XfnY4= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-499-mRMdkyNYM4O4MySSH-UrWg-1; Tue, 11 Mar 2025 07:48:57 -0400 X-MC-Unique: mRMdkyNYM4O4MySSH-UrWg-1 X-Mimecast-MFC-AGG-ID: mRMdkyNYM4O4MySSH-UrWg_1741693736 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 3B1F619560B7; Tue, 11 Mar 2025 11:48:56 +0000 (UTC) Received: from localhost.localdomain (unknown [10.44.33.35]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id D98251801747; Tue, 11 Mar 2025 11:48:53 +0000 (UTC) From: Hans de Goede To: Sakari Ailus Cc: Hans de Goede , Bryan O'Donoghue , Mauro Carvalho Chehab , linux-media@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH] media: ov08x40: Extend sleep after reset to 5 ms Date: Tue, 11 Mar 2025 12:48:44 +0100 Message-ID: <20250311114844.25593-1-hdegoede@redhat.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 Some users are reporting that ov08x40_identify_module() fails to identify the chip reading 0x00 as value for OV08X40_REG_CHIP_ID. Intel's out of tree IPU6 drivers include some ov08x40 changes including adding support for the reset GPIO for older kernels and Intel's patch for this uses 5 ms. Extend the sleep to 5 ms following Intel's example, this fixes the ov08x40_identify_module() problem. Link: https://github.com/intel/ipu6-drivers/blob/c09e2198d801e1eb701984d2948373123ba92a56/patch/v6.12/0008-media-ov08x40-Add-support-for-2-4-lanes-support-at-1.patch#L4607 Fixes: df1ae2251a50 ("media: ov08x40: Add OF probe support") Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede Reviewed-by: Bryan O'Donoghue --- drivers/media/i2c/ov08x40.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/i2c/ov08x40.c b/drivers/media/i2c/ov08x40.c index cf0e41fc3071..54575eea3c49 100644 --- a/drivers/media/i2c/ov08x40.c +++ b/drivers/media/i2c/ov08x40.c @@ -1341,7 +1341,7 @@ static int ov08x40_power_on(struct device *dev) } gpiod_set_value_cansleep(ov08x->reset_gpio, 0); - usleep_range(1500, 1800); + usleep_range(5000, 5500); return 0;